A Statistical Mechanical Model of Electrical Carbon Fiber Contacts

Author:

Xie J.1,Pecht M.1,Dasgupta A.1,Swift J. A.2,Wallace S. J.2

Affiliation:

1. CALCE-Electronic Products and Systems Center, University of Maryland, College Park, MD 20742

2. Xerox Corporation, Webster, NY 14580

Abstract

This paper presents a model for electrical carbon fiber contacts. In the model, a statistically distributed fiber length was considered at contact surfaces. A technique of dealing with this kind of contact surfaces with statistically determined, or specifically undeterminable, geometry was developed. The results were compared with the experimental data obtained previously. Also, the contact behaviors of electrical carbon fiber contacts were discussed and some specific contact properties, which were also observed experimentally, were clarified. A contact resistance decreasing rate was defined in a logarithmic-logarithmic scale coordinate. A constant-rate contact region was identified. The objective of this research is to provide a theoretical basis for the contact surface designs of electrical connectors.

Publisher

ASME International

Subject

Electrical and Electronic Engineering,Computer Science Applications,Mechanics of Materials,Electronic, Optical and Magnetic Materials

Reference11 articles.

1. Holm, R., 1967, Electric Contacts—Theory and Application, 4th ed., Springer-Verlag, New York.

2. Diaz G. , KittlP., and GalleguillosE., 1986, “Statistical Mechanics of Fracture and Fatigue of Compacted Copper Fiber Cement Composite,” Int. J. Cement Composites Lightweight Concrete, Vol. 8, No. 2, pp. 101–108.

3. Dunn, M. L., and Taya, M., 1993, “Creep and Thermal Cycling Creep of Matrix Composites,” Thermomechanical Behavior of Advanced Structural Materials, W. F. Jones, ed., ASME-AD, Vol. 34, pp. 33–46.

4. Chudnovsky, A. I., and Gorelik, M., 1996, “Statistical Aspects of Toughness in Brittle Fracture,” Advanced Materials: Development Characterization, Processing, and Mechanical Behavior, T. Nicholas, ed., ASME-MD, Vol. 74, pp. 31–32.

5. Roux, S., 1992, “Brittle Fracture of Heterogeneous Materials,” Macroscopic Behavior of Heterogeneous Materials From the Microstructure, S. Torquato and D. Krajcinovic, eds., ASME, Vol. 147, pp. 171–180.

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1. Micro contact modeling of electrical current conduction behavior between carbon fiber yarns;Composites Science and Technology;2024-05

2. Carbon Fiber-Based Grid Array Interconnects;IEEE Transactions on Components and Packaging Technologies;2007-12

3. Contact Discontinuity Modeling of Electromechanical Switches;IEEE Transactions on Reliability;2004-06

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